Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hunsrik
wo
←
Proto-Germanic
*hwēr
(inherited)
←
Proto-Germanic
*hwar
(mention)
←
Middle High German
wā
(inherited)
←
Middle High German
wār
(mention)
←
Proto-West Germanic
*hwār
(inherited)
←
Old High German
wār
(inherited)
←
Old High German
hwār
(mention)